Granted Patent
Utility
US 4,670,295 · App. 06/833,047
Method for making a protective coating on a machine-readable marking
Inventors:
Robert L. Quinn, Philip M. Heyman, Abraham Goldman
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Feb 26, 1986
Inventors
Robert L. Quinn
Philip M. Heyman
Abraham Goldman
Assignee (at issue)
RCA Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.